Is there an HDPE flange that bolts to an ANSI CS flange?

[KernOily]

I can't get a straight answer out of anybody. Is there an HDPE flange or adapter that will bolt to a regular ANSI flange? Just trying to connect an HDPE gathering line lateral to an existing CS header and I'd just like to use a flange. What's so hard about that? Maybe it's just me... maybe it's us, maybe it's them, maybe it's Maybelline. Thanks! Pete

 

[gr2vessels]

Try this (google for HDPE flanges):

http://www.alibaba.com/catalog/11164766/HDPE_Flanges.html

cheers,
gr2vessels

 

[doct9960]

KernOily,

Check out the literatures in

http://www.plasticpipe.org

like the following...

http://www.plasticpipe.org/pdf/pe_handbook_chapter_9_joining.pdf

http://plasticpipe.org/pdf/tn-38_bolt_torque_flanged_joints.pdf

 

[Metma]

You could use:
-HDPE gathering line: HDPE adaptor (stub end) and cs ANSI free flange (lap joint);
-cs header: CS regular ANSI flange.
In this way nuts work on two cs flanges instead of a HDPE flange and a cs flange; for this reason facing of the mating cs flange (header side) can be both RF and FF.
Regards

 

[KernOily]

Thanks guys! Pete

 

[ytse]

Use a HDPE flange adaptor(

http://www.kwhpipe.ca/pdfs/IPS_Flange_Adapters.pdf)

and a metal backing flange
(

http://www.kwhpipe.ca/pdfs/IPS_Ductile_Iron_Flange.pdf)

All these metal backing flanges have bolt pattern that match ANSI flanges.

 

[KernOily]

ytse, right on, that's what I'm doing. Finally found a decent drawing of a hookup using the link that doct9960 provided. Thanks guys! Pete